I just bought a used Hartke HyDrive 112, i like the way it sounds in the midrange and upper bass, it's clear and pleasant. There are two things i have noticed, i think the SPL is a bit low, the specs are 96db/1w, but I thought the speaker would be a bit louder. The other is that I was hoping for a little deeper bass. Does geeting more 112 improves a lot. Would it be better to get a HyDrive 4x10"?